In order to solve the environmental adaptability and corrosion resistant of epoxy rich zinc primer,E44 epoxy resin and modified polyamide modified by cashew shell oil were used as film forming resin system,and flake zinc powder replaced part of traditional spherical zinc powder.The coating flexibility was improved by the use of cardanol glycidyl ether active epoxy toughening agent.As a curing agent of modified cashew oil modified polyamide as a curing agent,the environmental adaptability problem of coating was effectively solved,and a zinc-rich epoxy primer with good corrosion resistance was prepared.The coating also has good construction adaptability,can cure at low temperature in winter,and can be used for a long time at high temperature in summer,the paint film is drying fast.